I think I know the answer to this (Yes), but wanted to make sure. We land at MXP and will take the Malpensa Express into Milan then heading to Cinque Terra for 4 nights. We will then train to Varenna for 3 nights then head back to Milan on the way to Lauterbrunnen. When we land at MXP and buy our Malpensa Express tickets for the train into Milan, can we buy our tickets there to/from Varenna, even though we won't take the trains for 5 and 8 days later? Once bought, all we'd need to do is then validate the tickets as we board for each trip? Thanks!
Jed